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Finding the Fourth Proportional to 652,264.80, 978,397.20 and 540,071.70

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Solution

The fourth proportional to 652,264.80, 978,397.20 and 540,071.70 is: 810,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,264.80 : 978,397.20 = 540,071.70 : x
  2. Step 2: Convert to fraction form
    652,264.80/978,397.20 = 540,071.70/x
  3. Step 3: Cross multiply
    652,264.80x = 978,397.20 × 540,071.70
  4. Step 4: Simplify right side
    652,264.80x = 528,404,639,079.24
  5. Step 5: Solve for x
    x = 528,404,639,079.24/652,264.80
  6. Step 6: Final answer
    x = 810,107.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.